[355] in resnet
Blocking Ports at the Internet Router
daemon@ATHENA.MIT.EDU (Joe Karam)
Fri Nov 9 10:58:32 2001
MIME-version: 1.0
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 7BIT
Message-ID: <NDBBIPGGLKBILFDJOHBEEEDEIEAA.jkaram@hamilton.edu>
Date: Fri, 9 Nov 2001 10:44:52 -0500
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: Joe Karam <jkaram@RUBY.HAMILTON.EDU>
To: RESNET-L@listserv.nd.edu
Hi folks,
I have recently asked our ISP to block TCP ports 138 and 139 (netbui) from
entering our internal network.
I have a few questions for you:
1) Do you block ports 138 and 139 at your Internet router? If you don't,
what applications do people use from off-campus that require those ports?
2) What other ports do you block at your Internet router?
3) Do you prefer blocking ports with access lists or firewalls?
Thanks for any feedback. I am happy to post a summary if I receive any
replies.
Joe Karam
Director, Network and Telecommunications Services
Information Technology Services
Hamilton College
198 College Hill Road
Clinton, NY 13323
Phone: 315-859-4167 Fax: 315-859-4185
jkaram@hamilton.edu
http://onthehill.hamilton.edu/college/its/network_services/
___________________________________________________
You are subscribed to the ResNet-L mailing list.
To subscribe, unsubscribe or search the archives,
go to http://LISTSERV.ND.EDU/archives/resnet-l.html
___________________________________________________
